EP 0435938 B1 19940622 - HIGH PRESSURE, FAST RESPONSE, PRESSURE BALANCED, SOLENOID CONTROL VALVE.
Title (en)
HIGH PRESSURE, FAST RESPONSE, PRESSURE BALANCED, SOLENOID CONTROL VALVE.
Title (de)
SCHNELL ANSPRECHENDES, DRUCKAUSGEGLICHENES, ELEKTROMAGNETISCHES HOCHDRUCK-STEUERVENTIL.
Title (fr)
ELECTROVALVE HAUTE PRESSION, A REPONSE RAPIDE, ET REGULEE EN PRESSION.
Publication
Application
Priority
- US 8903271 W 19890728
- US 24799988 A 19880922
Abstract (en)
[origin: US4858956A] A high pressure, fast response, pressure balanced reversible flow, solenoid control valve for use in such automotiove applications as electronic valve timing for internal combustion engines and adaptive braking systems. A pressure balanced bearing is connected to a moveable valve member forming a valve cavity therebetween which is at a first pressure. The moveable valve member is also connected to an armature means on the other side of the pressure balanced bearing in an armature cavity. The pressure on the opposite side of the valve member and in the armature cavity is at a second pressure. Thus, the moveable valve member is maintained in a pressure balanced condition and the solenoid then operates against any spring forces, inertia and the viscous effects of the fluid and not the pressure of the fluid. As the solenoid is energized, the armature moves the pressure balance bearing and the valve member to open the valve allowing fluid to flow from a valve inlet to the valve outlet. The control valve may be used in control systems where the fluid flow can be reversible.
IPC 1-7
IPC 8 full level
B60T 8/36 (2006.01); F01L 9/10 (2021.01); F01L 9/20 (2021.01); F16K 31/06 (2006.01)
CPC (source: EP US)
B60T 8/363 (2013.01 - EP US); F01L 9/10 (2021.01 - EP US); F01L 9/20 (2021.01 - EP US); F16K 31/0693 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
US 4858956 A 19890822; CA 1314784 C 19930323; DE 68916435 D1 19940728; DE 68916435 T2 19941201; EP 0435938 A1 19910710; EP 0435938 B1 19940622; ES 2015220 A6 19900801; JP H04505647 A 19921001; WO 9003500 A1 19900405
DOCDB simple family (application)
US 24799988 A 19880922; CA 607230 A 19890801; DE 68916435 T 19890728; EP 89911192 A 19890728; ES 8903209 A 19890922; JP 51043189 A 19890728; US 8903271 W 19890728